Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A wireless transmit/receive unit (WTRU) comprising: a receiver and a processor configured to receive a single downlink control information for a single transport block and a plurality of downlink control information for a plurality of first transport blocks, wherein each of the downlink control information includes a HARQ process identification (ID) associated with a respective transport block and resource mapping information for the respective transport block; the receiver and the processor are further configured to receive the single transport block in a first time interval or the plurality of transport blocks in a second time interval based on the respective resource mapping information; the processor is further configured to process the single transport block and the plurality of transport blocks based on the respective HARQ process IDs; and the processor and a transmitter are configured to transmit on a physical control channel having a first format an ACK/NACK for the single transport block and having a second format a plurality of ACK/NACKs for the plurality of transport blocks; wherein a first format does not include a cyclic redundancy check and the second format includes a cyclic redundancy check.
A wireless transmit/receive unit (WTRU) is designed to improve downlink data reception and acknowledgment in wireless communication systems. The WTRU includes a receiver and a processor that receive downlink control information (DCI) for transport blocks. The DCI includes a hybrid automatic repeat request (HARQ) process identification (ID) and resource mapping information for each transport block. The WTRU can receive either a single transport block in a first time interval or multiple transport blocks in a second time interval, depending on the resource mapping information. The processor processes these transport blocks based on their respective HARQ process IDs. The WTRU also includes a transmitter that sends acknowledgment (ACK/NACK) signals on a physical control channel. For a single transport block, the ACK/NACK uses a first format without a cyclic redundancy check (CRC). For multiple transport blocks, the ACK/NACK uses a second format that includes a CRC. This design allows efficient handling of both single and multiple transport blocks while ensuring reliable acknowledgment feedback.
2. The WTRU of claim 1 wherein the single transport block or the plurality of transport blocks are received over an antenna beam.
3. The WTRU of claim 1 wherein a transmission time of a transport block is variable.
4. The WTRU of claim 1 wherein the transmitted physical control channel of the second format includes channel quality indicators.
5. The WTRU of claim 1 wherein the plurality of ACK/NACKs in the second format are arranged based on information received during call setup.
6. The WTRU of claim 1 wherein the first format and the second format are associated with different transmission powers.
7. A method performed by a wireless transmit receive unit (WTRU), the method comprising: receiving a single downlink control information for a single transport block and a plurality of downlink control information for a plurality of first transport blocks, wherein each of the downlink control information includes a HARQ process identification (ID) associated with a respective transport block and resource mapping information for the respective transport block; receiving the single transport block in a first time interval or the plurality of transport blocks in a second time interval based on the respective resource mapping information; processing the single transport block and the plurality of transport blocks based on the respective HARQ process IDs; and transmitting on a physical control channel having a first format an ACK/NACK for the single transport block and having a second format a plurality of ACK/NACKs for the plurality of transport blocks; wherein a first format does not include a cyclic redundancy check and the second format includes a cyclic redundancy check.
8. The method of claim 7 wherein the single transport block or the plurality of transport blocks are received over an antenna beam.
A method for wireless communication involves receiving data over an antenna beam, where the data is structured as either a single transport block or multiple transport blocks. The method includes determining the size of the received data and adjusting the transmission parameters based on the determined size. If the data is a single transport block, the transmission parameters are adjusted to optimize the delivery of that block. If the data consists of multiple transport blocks, the transmission parameters are adjusted to optimize the delivery of the entire set. The method ensures efficient data transmission by dynamically adapting to the size and structure of the received data, improving reliability and throughput in wireless communication systems. The antenna beam used for transmission may be directed or configured to enhance signal quality and reduce interference, further optimizing the communication process. This approach is particularly useful in scenarios where data size varies, such as in high-speed wireless networks or systems with dynamic traffic conditions.
9. The method of claim 7 wherein a transmission time of a transport block is variable.
10. The method of claim 7 wherein the transmitted physical control channel of the second format includes channel quality indicators.
A method for wireless communication involves transmitting a physical control channel in a second format that includes channel quality indicators (CQIs). The second format is used to enhance communication reliability or efficiency, particularly in scenarios where the first format may be insufficient. The method may involve selecting the second format based on channel conditions, network requirements, or device capabilities. The inclusion of CQIs allows the receiving device to report the quality of the communication link, enabling adaptive adjustments such as modulation, coding, or power control. This improves data transmission performance by dynamically optimizing parameters based on real-time feedback. The method may be part of a broader system for managing wireless communications, including scheduling, resource allocation, or error correction. The use of CQIs in the second format ensures that the transmitter can adapt to varying channel conditions, reducing errors and improving throughput. This approach is particularly useful in environments with high interference, mobility, or varying signal strength. The method may be implemented in cellular networks, Wi-Fi, or other wireless communication systems where reliable control signaling is critical.
11. The method of claim 7 wherein the plurality of ACK/NACKs in the second format are arranged based on information received during call setup.
12. The method of claim 7 wherein the first format and the second format are associated with different transmission powers.
A system and method for wireless communication involves transmitting data in different formats with varying transmission powers to optimize signal quality and efficiency. The invention addresses the challenge of maintaining reliable communication in environments with varying signal conditions, such as interference or distance-related signal degradation. By dynamically adjusting the transmission format and power level, the system ensures robust data delivery while minimizing energy consumption. The method includes selecting a first transmission format and a second transmission format, where each format is associated with a distinct transmission power. The first format may be used for initial data transmission, while the second format, with a different power level, is employed for retransmission or error correction. This approach allows the system to adapt to changing channel conditions, improving overall communication reliability. The transmission power adjustment can be based on factors such as signal strength, error rates, or network congestion, ensuring efficient use of available resources. The system may also include feedback mechanisms to monitor performance and further refine transmission parameters. This adaptive technique enhances data throughput and reduces latency in wireless networks.
13. A base station comprising: a transmitter configured to transmit a single downlink control information for a single transport block and a plurality of downlink control information for a plurality of first transport blocks, wherein each of the downlink control information includes a HARQ process identification (ID) associated with a respective transport block and resource mapping information for the respective transport block; the transmitter further configured to transmit the single transport block in a first time interval or the plurality of transport blocks in a second time interval based on the respective resource mapping information; and a receiver configured to receive on a physical control channel having a first format an ACK/NACK for the single transport block and having a second format a plurality of ACK/NACKs for the plurality of transport blocks; wherein a first format does not include a cyclic redundancy check and the second format includes a cyclic redundancy check.
14. The base station of claim 13 wherein the single transport block or the plurality of transport blocks are received over an antenna beam.
15. The base station of claim 13 wherein a transmission time of a transport block is variable.
In wireless communication systems, efficient data transmission between base stations and user devices is critical for maintaining high-speed, reliable connectivity. A key challenge is dynamically adjusting transmission parameters to optimize performance under varying network conditions, such as signal interference, channel quality, and user mobility. This invention addresses this challenge by introducing a base station with a variable transmission time for transport blocks, which are units of data transmitted over the air interface. The base station includes a scheduler that dynamically determines the transmission time for each transport block based on real-time network conditions. This flexibility allows the base station to adapt to changing channel conditions, reducing latency when the channel is favorable and improving reliability when conditions are poor. The scheduler may consider factors such as channel quality indicators (CQI), buffer status reports, and user device mobility patterns to adjust the transmission time accordingly. By varying the transmission time, the base station can optimize throughput, minimize packet loss, and enhance overall network efficiency. Additionally, the base station may coordinate with neighboring cells to avoid interference and ensure seamless handover for mobile users. The variable transmission time feature can be integrated with existing scheduling algorithms, making it compatible with various wireless standards, including 5G and beyond. This approach enhances the adaptability of the base station, ensuring robust performance in diverse network environments.
16. The base station of claim 13 wherein the transmitted physical control channel of the second format includes channel quality indicators.
A wireless communication system includes a base station that transmits physical control channels in different formats to user equipment (UE) devices. The base station dynamically selects between a first format, optimized for low-latency communication, and a second format, optimized for higher reliability. The second format includes channel quality indicators (CQIs) to assess the communication link quality between the base station and the UE. The base station monitors the communication link and switches between the formats based on link conditions, ensuring efficient and reliable data transmission. The system improves communication performance by adapting to varying channel conditions while maintaining low latency when needed. The base station may also adjust transmission parameters, such as modulation and coding schemes, based on the received CQIs to further enhance reliability. This adaptive approach ensures robust communication in dynamic wireless environments.
17. The base station of claim 13 wherein the plurality of ACK/NACKs in the second format are arranged based on information received during call setup.
18. The base station of claim 13 wherein the first format and the second format are associated with different transmission powers.
In wireless communication systems, base stations must efficiently manage data transmission to multiple devices with varying signal quality and power requirements. A base station may transmit data in different formats to accommodate devices at different distances or in different interference conditions. However, varying transmission formats can lead to inefficiencies in power usage and resource allocation. A base station is configured to transmit data to a user device using at least two different transmission formats, where each format is associated with a distinct transmission power level. The base station selects a transmission format based on the user device's channel conditions, such as signal strength or interference levels. For example, a higher-power format may be used for devices with weak signals, while a lower-power format may be used for devices with strong signals. The base station dynamically adjusts the transmission power for each format to optimize power efficiency and minimize interference. This approach ensures reliable communication while conserving energy and spectrum resources. The base station may also prioritize certain formats over others based on network conditions or device capabilities, further enhancing performance.
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March 23, 2021
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